2.1.3. Flavonoids

Flavones, flavonols, and *O*-methylated flavones were the main flavonoids identified in the olive leaf extracts according to sampling time and drying. These were luteolin with an ion at *m/z* 285.0405 (peak 13), quercetin with an ion at *m/z* 301.0354 (peak 14), and diosmetin with an ion at *m/z* 299.0561 (peak 17). The identification of these flavonoids was based on their analytical standards together with their MS spectra. They have also been reported in previous literature [13].
